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Executive Agency Bulgarian Accreditation Service. SPECIFIC REQIREMENTS FOR TESTING LABORATORIES WITH SCOPE OF ACCREDITATION IN THE FIELD OF LOW VOLTAGE DIRECTIVE . PROBLEMS AND FUTURE DEVELOPMENT Boyan Ivanichkov, M. Sc. Eng. EA “BAS” Lead Assessor.

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Executive Agency Bulgarian Accreditation Service

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Executive agency bulgarian accreditation service

Executive AgencyBulgarian Accreditation Service

SPECIFIC REQIREMENTS FOR TESTING LABORATORIES WITH SCOPE OF ACCREDITATION IN THE FIELD OF LOW VOLTAGE DIRECTIVE.

PROBLEMS AND FUTURE DEVELOPMENT

Boyan Ivanichkov, M. Sc. Eng.

EA “BAS” Lead Assessor


Executive agency bulgarian accreditation service

Executive AgencyBulgarian Accreditation Service

  • Used documents in accreditation process:

  • БДС ENISO/IEC 17025:2006

  • ЕА documents

  •  ILACandIAF documents


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

  • Specific problemsof accreditation of testing laboratories with scope of accreditation in the field of

  • LOW VOLTAGE DIRECTIVE (LVD)

  • Traceability of measurements

  • evaluation and estimation of uncertainty

  • Implementation of standards for testing

  •  interlaboratory comparisons and proficiency tests


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

  • EA “BAS”policy for traceability of measurements

    ›in accredited laboratories for calibration

  • ›inGD “NCM” (SAMTS)

  • ›in accredited laboratories for calibration, accredited by Accreditation body, signatory of Multilateral Agreement of EA - ЕА (ЕА MLA) in the field of calibration


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

  • Problems, related to traceability:

    ›Changes of legislation in the field of metrology, changes in ordinance for verifying of measurement equipment

  • ›Market in the field of calibration needs time to reach grown needs in the field of calibration

  • ›GD “NCM” (SAMTS) deny calibration of some types of measurement equipment and measurement equipment of low accuracy

  • ›GD “NCM” (SAMTS) is not signatory ofBIPMMRAfor all quantities

    ›laboratories calibrate measurement equipment abroad


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

  • Traceability by calibration in the laboratory:

  • ›ensure environmental conditions;

  • › purchase and calibration of standards and additional measurement equipment ;

  • ›development and implementation of methods forcallibration

  • › implementation of GuidanceEA-4/02 “ExpressionoftheUncertaintyofMeasurementinCalibration”;

  • ›validation of calibration methods, objective evidence and and records for validation;

  • ›intermediate checks .


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

Uncertainty - БДС ENISO/IEC 17025:2006

  • Guidance and requirements for evaluation of uncertainty in quantitative testings

  • Guidance and requirements for reporting of estimated uncertainty


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

 development and implementation of methods forevaluation /estimation/ of uncertainty

›GuidanceILAC-G17:2002 “IntroducingtheConceptofUncertaintyofMeasurementinTestinginAssociationwiththeApplicationoftheStandardISO/IEC 17025”

›GuidanceEA 4/16:2004 “EAguidelinesontheexpressionofuncertaintyinquantitativetesting”


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

Uncertainty concept

› not only considerthe single measurement but also the overall result of a test

›used for documenting the traceability of the measurement

›characterizes the reliability of the measurement

›has to be taken into account when testing results are compared with each other or against specifications


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

  • Problems inevaluation /estimation/ of uncertainty :

  • ›lack of experience and qualification of the personnel ;

  • ›lack of informationfor specific requirements, related with tests in the field of LVD

    ›lack of knowledge of guidelines of ЕА and ILAC

    ›insufficient understanding of uncertainty conceptand it importance for the result

    ›insufficient understanding of uncertainty conceptin order to choose testing methods that are fit for purpose. .


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

  • Standards

  • ›standards, adopted like БДС with translated first page

  • ›language barrier

  • ›validity of many standards have to be checked

  • ›verification of all used standards

  • ›objective evidence and records for validation


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

  • Requirements of Accreditation body for participation in interlaboratory comparisons and proficiency tests :

  • ›scopeof participation, related to accredited scope;

  • ›frequency of participation

  • ›PT providers


Executive agency bulgarian accreditation service

Executive Agency Bulgarian Accreditation Service

Interlaboratory comparisons and Proficiency tests

Requirements of Accreditation body for participation in Interlaboratory comparisons and Proficiency tests

› ISO/IEC GUIDE 43 - 2 “Proficiency testing by interlaboratory comparisons - Selection and use of proficiency testing schemes by laboratory accreditation bodies”

›ILAC-G22:2004 “UseofProficiencyTestingasaToolforAccreditationinTesting”.


Thank you for your attention

ИЗПЪЛНИТЕЛНА АГЕНЦИЯ“БЪЛГАРСКА СЛУЖБА ЗА АКРЕДИТАЦИЯ”

THANK YOU FOR YOUR ATTENTION!


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